Molekula
Sudan Black
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sudan Black is a synthetic azo dye used primarily in histology for staining lipids and fats in tissue samples. It is also employed in forensic science and quality control testing. Available in powder form with a purity of ≥95%, it has a CAS number of 4197-25-5, molecular formula C29H24N6, and molecular weight of 456.54 g/mol. Store at ambient temperature. Molekula supplies Sudan Black from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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10 g — £31.00 per pack ex VAT · £37.20 inc. VAT
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25 g — £38.30 per pack ex VAT · £45.96 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Black powder |
| pH | 4 - 7 |
| Specific Gravity | 1.31 |
| Insolubles | ≤1.0% |
| Volatile Matter | ≤0.6% |
| Tint Strength | 95 - 105% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90028563 |
| CAS Number | 4197-25-5 |
| IUPAC Name | (2,2-dimethyl-1,3-dihydroperimidin-6-yl)-(4-phenyldiazenylnaphthalen-1-yl)diazene |
| EC Number | 224-087-1 |
| Molecular Formula | C29H24N6 |
| Molecular Weight | 456.54 |
| Exact Mass | 456.2062 |
| SMILES | CC1(NC2=C3C(=C(C=C2)N=NC4=CC=C(C5=CC=CC=C54)N=NC6=CC=CC=C6)C=CC=C3N1)C |
| InChIKey | YCUVUDODLRLVIC-UHFFFAOYSA-N |
| InChI | InChI=1S/C29H24N6/c1-29(2)30-26-14-8-13-22-25(17-18-27(31-29)28(22)26)35-34-24-16-15-23(20-11-6-7-12-21(20)24)33-32-19-9-4-3-5-10-19/h3-18,30-31H,1-2H3 |
| PubChem CID | 61336 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 3212900050 |
| Tariff Code | 3212900000 |
Safety & GHS
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Serious Health Hazard
GHS08
Hazard statements
- H341 Suspected of causing genetic defects
Precautionary statements
- P201 Obtain special instructions before use
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- C.I. Solvent Black 3
- Ceres Black BN
- Fast Black HB
- Fat Black HB
- Hexatype Black B
- Lacquer Black S
- Lacquer Black VB
- Nubian Black BT
- Sudan black B
- Typogen Black
Frequently asked questions
What is Sudan Black used for?
Sudan Black is primarily used as a histological stain for lipids and fat droplets in tissue samples, particularly in staining neutral fats and lipids in microscopy.
What is the chemical formula and molecular weight of Sudan Black?
The chemical formula of Sudan Black is C29H24N6, with a molecular weight of 456.54 g/mol.
How should Sudan Black be stored?
Sudan Black should be stored at ambient temperature, protected from light and moisture.
What grade of Sudan Black does Molekula supply?
Molekula supplies Sudan Black in analytical grade, suitable for laboratory and histological applications.
Can Molekula supply Sudan Black in bulk?
Yes, Molekula can supply Sudan Black in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a Sudan Black order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with regulatory standards.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.